<template>
   <div>
      <!--面包屑导航区-->
      <el-breadcrumb separator-class="el-icon-arrow-right">
         <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
         <el-breadcrumb-item>用户管理</el-breadcrumb-item>
         <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
      
      <!--卡片视图区域-->
      <el-card>
         <!--搜索与添加区域-->

         <el-row :gutter="20">
            <el-col :span="7">
               <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                  <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
               </el-input>
            </el-col>
               <el-col :span="4">
                 <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
               </el-col>
         </el-row>

         <!--用户列表区域-->
         <el-table :data="userlist" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="姓名" prop="username"></el-table-column>
            <el-table-column label="邮箱" prop="email"></el-table-column>
            <el-table-column label="电话" prop="mobile"></el-table-column>
            <el-table-column label="角色" prop="role_name"></el-table-column>
            <el-table-column label="状态">
               //作用域插槽
               <template slot-scope="scope">
                  <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                  </el-switch>
               </template>
            </el-table-column>
            <el-table-column label="操作" width="180px">
               <template slot-scope="scope">
                  <!--修改按钮-->
                  <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                  <!--删除按钮-->
                  <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                  <!--分配角色按钮-->
                  <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                     <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
                  </el-tooltip>           
               </template>
            </el-table-column>
         </el-table>

         <!--分页区域-->
          <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
         </el-pagination>
      </el-card>  
      
      <!--添加用户的对话框-->
      <el-dialog
         title="添加用户"
         :visible.sync="addDialogVisible"
         width="50%"
         @close="addDialogClosed">
         <!--内容主体区域-->
         <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" class="demo-ruleForm">
            <el-form-item label="用户名" prop="username">
               <el-input v-model="addForm.username"></el-input>
            </el-form-item>
             <el-form-item label="密码" prop="password">
               <el-input v-model="addForm.password"></el-input>
            </el-form-item>
             <el-form-item label="邮箱" prop="email">
               <el-input v-model="addForm.email"></el-input>
            </el-form-item>
             <el-form-item label="手机" prop="mobile">
               <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
         </el-form>
         <!--底部区域-->
         <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
         </span>
      </el-dialog>

      <!--修改用户的对话框-->
      <el-dialog
         title="修改用户"
         :visible.sync="editDialogVisible"
         width="50%"
         @close="editDialogClosed">
         <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
            <el-form-item label="用户名">
               <el-input v-model="editForm.username" disabled></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
               <el-input v-model="editForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
               <el-input v-model="editForm.mobile"></el-input>
            </el-form-item>
         </el-form>
         <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editUserInfo">确 定</el-button>
         </span>
      </el-dialog>

   </div>

</template>

<script>
    export default {
        data(){
           //验证邮箱的规则
           var checkEmail = (rule, value, cb)=> {
              //验证邮箱的正则表达式
              const regEmail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/

              if(regEmail.test(value)){
                 //合法的邮箱
                 return cb()
              }

              cb(new Error('请输入合法的邮箱'))
           }

           //验证手机号的规则
           var checkMobile = (rule, value, cb)=> {
              // 验证手机号的正则表达式
              const regMobile = /^[1][3,4,5,7,8][0-9]{9}$/

              if(regMobile.test(value)){
                 return cb()
              }

              cb(new Error('请输入合法的手机号'))
           }

           return {
              //获取用户列表的参数对象
              queryInfo:{
                 query:'',
                 //当前的页数
                 pagenum:1,
                 //当前每页显示多少条数据
                 pagesize:2
              },
              userlist: [],
              total:0,
              //控制添加用户对话框的显示与隐藏
              addDialogVisible:false,
              //添加用户的表单数据理解
              addForm:{
                 username:'',
                 passwrod:'',
                 email:'',
                 mobile:''
              },
              //添加表单的验证规则对象
              addFormRules:{
                 username:[
                    {required:true,message:'请输入用户名',trigger:'blur'},
                    {min:3,max:10,message:'用户名的长度在3-10个字符之间',trigger:'blur'}
                 ],
                 password:[
                    {required:true,message:'请输入密码',trigger:'blur'},
                    {min:6,max:15,message:'密码的长度在6-15个字符之间',trigger:'blur'}
                 ],
                 email:[
                     {required:true,message:'请输入邮箱',trigger:'blur'},
                     {validator:checkEmail,trigger:'blur'}
                 ],
                 mobile:[
                     {required:true,message:'请输入手机号',trigger:'blur'},
                     {validator:checkMobile,trigger:'blur'}
                 ]
              },
              //控制修改对话框的显示与隐藏
              editDialogVisible:false,
              //查询到的用户信息对象
              editForm: {},
              //修改表单的验证规则对象
              editFormRules:{
                  email:[
                  {required: true, message:'请输入用户邮箱', trigger:'blur'},
                  {validator:checkEmail,trigger:'blur'}
               ],
               mobile:[
                  {required: true, message:'请输入用户手机', trigger:'blur'},
                  {validator:checkMobile,trigger:'blur'}
               ]
              }
           }
        },
        created() {
           this.getUserList()
        },
        methods: {
           async getUserList() {
             const {data:res} = await this.$http.get('users',{ params: this.queryInfo})
             if(res.meta.status !== 200) {return this.$message.error('获取用户列表失败')}
             this.userlist = res.data.users
             this.total = res.data.total
             console.log(res)
           },
           //监听 pagesize 改变的事件
           handleSizeChange(newSize){
              console.log(newSize)
              this.queryInfo.pagesize = newSize
              this.getUserList()
           },
           //监听 页码值 改变的事件
           handleCurrentChange(newPage){
              console.log(newPage)
              this.queryInfo.pagenum = newPage
              this.getUserList()
           },
           //监听 switch 开关状态的改变
           async userStateChanged(userinfo){
              console.log(userinfo)
              const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
              if(res.meta.status !== 200){
                 userinfo.mg_state = !userinfo.mg_state
                 return this.$message.error('更新用户状态失败！')
              }
              this.$message.success('更新用户状态成功')
           },
           //监听用户对话框的关闭事件
           addDialogClosed() {
              this.$refs.addFormRef.resetFields()
           },
           //点击按钮添加新用户
           addUser(){
              this.$refs.addFormRef.validate(async valid => {
                 if(!valid)return 
                 //通过了，则可以发起添加用户的网络添加请求
                const {data: res} = await this.$http.post('users',this.addForm)

                if(res.meta.status != 201){
                   this.$message.error('添加用户失败')
                }

                this.$message.success('添加用户成功')
                //隐藏添加用户的对话框
                this.addDialogVisible = false
                //重新获取用户列表数据
                this.getUserList()
              })
           },
           //展示编辑用户的对话框
           async showEditDialog(id){
              const {data:res} = await this.$http.get('users/'+id)

              if(res.meta.status !== 200){
                 return this.$message.error('查询用户信息失败！')
              }

              this.editForm = res.data
              this.editDialogVisible = true
           },
           //监听用户对话框的关闭事件
           editDialogClosed(){
              this.$refs.editFormRef.resetFields()
           },
           //修改用户信息并提交
           editUserInfo(){
              this.$refs.editFormRef.validate(async valid=>{
                 if(!valid)return
                 //发起修改用户信息的数据请求
                 const {data: res} = await this.$http.put('users/' + this.editForm.id,{email:this.editForm.email,
                 mobile:this.editForm.mobile})

                 if(res.meta.status != 200){
                    return this.$message.error('更新用户信息失败！')
                 }

                 //关闭对话框
                 this.editDialogVisible = false
                 //刷新数据列表
                 this.getUserList()
                 //提示修改成功
                 this.$message.success('更新用户信息成功！')
              })
           },
           //根据id删除对应得用户信息
           async removeUserById(id){
            //询问用户是否删除数据
           const confirmResult =await this.$confirm('此操作将永久删除该用户数据, 是否继续?', '提示', {
               confirmButtonText: '确定',
               cancelButtonText: '取消',
               type: 'warning'
            }).catch(err => err )
            
            // 如果用户确认删除，则返回值为字符串 confirm
            // 如果用户取消了删除，则返回值为字符串 cancel
            if(confirmResult != 'confirm'){
               return this.$message.info('已取消删除')
            }

            const {data: res} = await this.$http.delete('users/' + id)

            if(res.meta.status !== 200){
               return this.$message.error('删除用户失败')
            }

            this.$message.success('删除用户成功！')
            this.getUserList()
           }
        }
    }
</script>

<style lang="less" scoped>

</style>